Nut lock



April 24, 1928.

G. W. BOWMAN NUT LOCK Filed July 16, 1927 .1 1 fig Altamira" Patented Apr. 24, 1928.

opener, W. Bowman; or amete,

sexist NUT LOCK.

Application filed July 16, 1927. Serial m3. 206,275.

My present invention pertains to nut locks; and it contemplates the provision of a simple and easily applied nut lock, and one which is highly efficient in preventing the casual displacement of a nut or nuts;

To the attainment of the foregoing, the

I show in said figures a bolt 3' which in the illustrated embodiment of the invention has a head 4, a right hand threaded portion 5, a left hand threaded portion 6, and a plain or smooth cylindrical terminal portion 7. The said terminal portion 7 is provided with a diametrical kerf 8 which extends to the bolt ends and terminates at its inner end in an enlargement 9, preferably, though not necessarily of the cross sectional shape illustrated.

I also show in Figures 1 and 2 and at the op osite side of the elements 1 and 2, with re erence to the bolt head 4, anut 10 complementary to the threaded portion-5, and

a nut 11 complementary to the threaded into the kerf 8 of the bolt; and it will also,

about said end and the key ltherein.

Figures 1 and 2 two elements 1 and 2 to be connected, and I also show in be noted that the key 14 is provided at its outer end adjacent to one of its edges with V a projection 17. The, annulus 1.5 is pro vided inits outer edge with a notch 18 designed to receive the said projection 17 when the projeetionis hammered down flushwith the outer endsof the bolts and annulus.

In the practical use of my improvement the key 1a is inserted edgewise in the kerf of the bolt 3, and the annulus is moved endwise into position on the belt end and the said position, the inner endot the annu v lus 15 is opposed to the outer side of the nut 11, and after the annulus 15 positioned as indicated,the projectionl'i of the key 1 1 is subjected co-hammer blows until said pro jection is seated in the notch 18 of the annulus, whereupon the annulus will be strongly secured'on the bolt'and will [serve to e'fiew tively preclude outward movement of'the nut 11 on the bolt. 1 p I v r It will be apparent from the foregoing that my improvementis susceptible of quick and easy application, and that it is capable of precluding outward'movcment of the nut 11 even when said nut 11 is subjected to great stresses- I have entered into a detailed description of the construction and relative arrangement of the parts embraced in the present and preferred embodiment of my invention in order to impart a-tull, clear, and exact. understanding of the said eml'iodimeut. I do not desire, however, to be understood as limiting myself to the construction illustrated, my invention being defined by my appended claims within the scope of which modifications may be made, without depar-- ture from my invention.

- Havingt-hus described the invention, what I claim as new and desire to secure by Letters Patent is 4 1. The combination in a nut lock, of a bolt having a threaded portion and a ter-' minal portion, the latter with a diametrical kerf extending to its end and enlaugedfat the inner end of the kert, a nut on the threadedportion of the belt, a key dis posed in the kerf of the bolt and having an Q i I 1,667,305

enlargement or head at its inner end and also cal kerf therein and an enlargement at the 10 having a projection at its outer end, and an inner end of the kerf, an annulus about said annulus receiving the terminal portion of end portion of the bolt, and a key secured the bolt and the key and opposed to the in the bolt kerf and having a portion enouter side of the nut and having a notch gaging and adapted to prevent displacement receiving or seating the said projection of of the annulus. a H 15 the key. In testimony whereof I aifixmy signature.

2. The combination in a nut lock, of a bolt having an end portion With a diametri Y GEORGE W. BOWMAN. 

